Imperial Blades Starlock 3" Carbide Grit Segment Blade, 1PC (IBSL610-1) is coated with high performance carbide for aggressive material removal. Recommended applications are: Porous Concrete, Tile Grout, Plaster and more. Thin 3/32" kerf for removing grout without damaging surrounding tile. Segment blade shape is ideal for working in corners and on edges without over cut. Popular projects include cleaning and reworking planked deck joints, removal of tile grout and bath remodeling when replacing a shower valve. Compatible with Starlock multi-tools: Bosch and Fein. Also fits non-Starlock multi-tools: Milwaukee, Ridgid, Makita, Rockwell and more.